Effect of Cu/Al doping on electronic structure and optical properties of ZnO

Dai, Jianfeng; Suo, Zhongqiang; Li, Zengpeng; Gao, Shanshan

doi:10.1016/j.rinp.2019.102649

Cited by 37 publications

(16 citation statements)

References 45 publications

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“…Extrinsic doping of ZnO is possible with several different dopants, including Al, In, Ga, Cu, and Cd. Conductive ZnO thin films can be prepared most efficiently by doping with Al, as reported by Lassar et al [9] and Dai et al [10].…”

Section: Introductionmentioning

confidence: 94%

Effect of sputtering power and substrate temperature on structural, optical, wettability and anti-icing characteristics of aluminium doped zinc oxide

Patel

Chauhan

2022

Mater. Res. Express

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Thin films of ZnO:Al were synthesized on glass substrates by RF magnetron sputtering. Structural, optical, wettability and anti-icing properties of the thin films are studied as a function of substrate temperature and sputtering power. XRD patterns showed an increase in the intensity of (002) peak when the sputtering power and substrate temperature are increased. The roughness and average grain size also increased with an increment in substrate temperature and sputtering power. Transmittance and band gap energy observed in the wavelength range of 350-800 showed the average transmittance was in the range of 90 to 76% and 3.12-2.88 eV. The contact angle and anti-icing properties observed during the investigation demonstrated that the synthesized coatings are hydrophobic and the formation of ice was delayed when compared to uncoated substrates.

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Section: Introductionmentioning

confidence: 94%

Effect of sputtering power and substrate temperature on structural, optical, wettability and anti-icing characteristics of aluminium doped zinc oxide

Patel

Chauhan

2022

Mater. Res. Express

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“…The increase in bandgap with annealing has been linked with the increase of crystallite size upon annealing at higher temper-atures [27]. The energy levels in semiconductors are dependent on the degree of structural order-disorder in the lattice [28]. Therefore, the increase of structural organization in nanoceramic leads to a reduction of the intermediary energy levels which consequently increases E g .…”

Section: Results and Analysismentioning

confidence: 99%

Functional Properties of Donor (Al) and Acceptor (Cu) Codoped High Dielectric Constant ZnO Nanoparticles

Tariq

Azad

2022

Journal of Nanomaterials

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In this work, we have synthesized donor-acceptor (Al-Cu) codoped ZnO nanoparticles with a doping concentration of 0%, 0.25%, 0.5%, and 0.75% by coprecipitation method. The synthesized samples were then annealed at 350°C and 600°C. All the samples showed wurtzite structure of ZnO with no secondary phase. The increase in doping concentration led to deterioration of crystalline quality, while improved crystallinity was observed at higher annealing temperature. The morphological study of these samples showed good grain-to-grain contact with less isolated pores. These samples were further characterized by impedance spectroscopy for analyzing dielectric properties. The values of the real part of dielectric constant and tangent loss showed decreasing trend with frequency. The appearance of semicircular arcs in the impedance complex plane plots indicates contribution of grains and grain boundaries and presence of different relaxation processes. 0.5% Al and Cu codoped ZnO showed the best dielectric response with a high value of dielectric constant and low tangent loss.

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“…To correct for the strong local correlation of Zn and Cu 3d states and O 2p states for better band gap, DFT+U method 26,27 was used with Hubbard- U values of 10.5 eV for Zn 3d electrons, 4.5 eV for Cu 3d electrons, and 7.0 eV for O 2p electrons. 28–30…”

Section: Methodsmentioning

confidence: 99%

Photocatalytic degradation of methylene blue (MB) with Cu₁–ZnO single atom catalysts on graphene-coated flexible substrates

et al. 2022

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Effect of Cu/Al doping on electronic structure and optical properties of ZnO

Cited by 37 publications

References 45 publications

Effect of sputtering power and substrate temperature on structural, optical, wettability and anti-icing characteristics of aluminium doped zinc oxide

Effect of sputtering power and substrate temperature on structural, optical, wettability and anti-icing characteristics of aluminium doped zinc oxide

Functional Properties of Donor (Al) and Acceptor (Cu) Codoped High Dielectric Constant ZnO Nanoparticles

Photocatalytic degradation of methylene blue (MB) with Cu₁–ZnO single atom catalysts on graphene-coated flexible substrates

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Effect of Cu/Al doping on electronic structure and optical properties of ZnO

Cited by 37 publications

References 45 publications

Effect of sputtering power and substrate temperature on structural, optical, wettability and anti-icing characteristics of aluminium doped zinc oxide

Effect of sputtering power and substrate temperature on structural, optical, wettability and anti-icing characteristics of aluminium doped zinc oxide

Functional Properties of Donor (Al) and Acceptor (Cu) Codoped High Dielectric Constant ZnO Nanoparticles

Photocatalytic degradation of methylene blue (MB) with Cu1–ZnO single atom catalysts on graphene-coated flexible substrates

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Photocatalytic degradation of methylene blue (MB) with Cu₁–ZnO single atom catalysts on graphene-coated flexible substrates